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674510081 = 7127758729
BaseRepresentation
bin101000001101000…
…011010100000001
31202000012122212212
4220031003110001
52340133310311
6150533031505
722500145460
oct5015032401
91660178785
10674510081
1131681a453
12169a85595
13a99861bb
14658209d7
153e339c8b
hex28343501

674510081 has 8 divisors (see below), whose sum is σ = 776939520. Its totient is φ = 573598368.

The previous prime is 674510027. The next prime is 674510093. The reversal of 674510081 is 180015476.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-674510081 is a prime.

It is a super-2 number, since 2×6745100812 = 909927698741253122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (674510021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378476 + ... + 380253.

It is an arithmetic number, because the mean of its divisors is an integer number (97117440).

Almost surely, 2674510081 is an apocalyptic number.

It is an amenable number.

674510081 is a deficient number, since it is larger than the sum of its proper divisors (102429439).

674510081 is a wasteful number, since it uses less digits than its factorization.

674510081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758863.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 674510081 is about 25971.3319065465. The cubic root of 674510081 is about 876.9930431578.

The spelling of 674510081 in words is "six hundred seventy-four million, five hundred ten thousand, eighty-one".

Divisors: 1 7 127 889 758729 5311103 96358583 674510081